(S)-3-{(E)-(2R,13R)-2,13-Bis-methoxymethoxy-13-[(2R,5R,2'R,5'R)-5'-((R)-1-methoxymethoxy-undecyl)-octahydro-[2,2']bifuranyl-5-yl]-tridec-9-enyl}-5-methyl-5H-furan-2-one

(5R,6S,9R,10R)-9-((tert-butyldimethylsilyl)oxy)-5-decyl-12,12,13,13-tetramethyl-10-(3-oxopropyl)-2,4,11-trioxa-12-silatetradecan-6-yl 4-methylbenzenesulfonate

(5R,6S,9R,10R)-9-((tert-butyldimethylsilyl)oxy)-5-decyl-10-(3-hydroxypropyl)-12,12,13,13-tetramethyl-2,4,11-trioxa-12-silatetradecan-6-yl 4-methylbenzenesulfonate

(5S)-5-methyl-3-phenylsulfanyl-4,5-dihydrofuran-2(3H)-one

(E)-(2'R,5S)-3-(5'-iodo-2'-tert-butyldimethylsilyloxy)pent-4'-enyl-2,5-dihydro-5-methylfuran-2-one